metamodel: rename 'universal' to 'enum'

[nit.git] / src / parser / xss / nodes.xss

diff --git a/src/parser/xss/nodes.xss b/src/parser/xss/nodes.xss
index 60a1ec9..a62df55 100644 (file)
--- a/src/parser/xss/nodes.xss
+++ b/src/parser/xss/nodes.xss
@@ -1,36 +1,39 @@
-/* This file is part of NIT ( http://www.nitlanguage.org ).
- *
- * Copyright 2008 Jean Privat <jean@pryen.org>
- * Based on algorithms developped for ( http://www.sablecc.org/ ).
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+$ // This file is part of NIT ( http://www.nitlanguage.org ).
+$ //
+$ // Copyright 2008 Jean Privat <jean@pryen.org>
+$ // Based on algorithms developped for ( http://www.sablecc.org/ ).
+$ //
+$ // Licensed under the Apache License, Version 2.0 (the "License");
+$ // you may not use this file except in compliance with the License.
+$ // You may obtain a copy of the License at
+$ //
+$ //     http://www.apache.org/licenses/LICENSE-2.0
+$ //
+$ // Unless required by applicable law or agreed to in writing, software
+$ // distributed under the License is distributed on an "AS IS" BASIS,
+$ // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+$ // See the License for the specific language governing permissions and
+$ // limitations under the License.
 
 $ template make_abs_nodes()
 # Root of the AST hierarchy
 abstract class PNode
-       readable var _location: nullable Location
+       var _location: nullable Location
+
+       # Location is set during AST building. Once built, location cannon be null
+       # However, manual instanciated nodes may need mode care
+       fun location: Location do return _location.as(not null)
 end
 
 # Ancestor of all tokens
 abstract class Token
-special PNode
+       super PNode
 end
 
 # Ancestor of all productions
 abstract class Prod
-special PNode
-       fun location=(loc: nullable Location) do _location = loc
+       super PNode
+       fun location=(loc: Location) do _location = loc
 end
 $ end template
 
@@ -59,46 +62,18 @@ redef class PNode
        # Visit all nodes in order.
        # Thus, call "v.visit(e)" for each node e
        fun visit_all(v: Visitor) is abstract
-
-       # Visit all nodes in reverse order.
-       # Thus, call "v.visit(e)" for each node e starting from the last child
-       fun visit_all_reverse(v: Visitor) is abstract
-
-       # Give a human readable location of the node.
-       fun locate: String
-       do
-               if location == null then
-                       return "????"
-               end
-               return location.to_s
-       end
-
-       # Debug method: output a message prefixed with the location.
-       fun printl(str: String)
-       do
-               print("{locate}: {str}\n")
-       end
 end
 
 redef class Token
        redef fun visit_all(v: Visitor) do end
-       redef fun visit_all_reverse(v: Visitor) do end
        redef fun replace_child(old_child: PNode, new_child: nullable PNode) do end
 end
 
 redef class Prod
-       # The first token of the production node
-       readable writable var _first_token: nullable Token
-
-       # The last token of the production node
-       readable writable var _last_token: nullable Token
-
        redef fun replace_with(n: PNode)
         do
                 super
                 assert n isa Prod
-                n.first_token = first_token
-                n.last_token = last_token
                 n.location = location
         end
 end